Railway-car truck.



H. H. VAUGHAN.

RAILWAY CAR TRUCK.

APPLICATION FILED 11111.17, 1914.

Patented Deo. 8, 1914.

iii

HENRY H. VAUGHAN, F WESTMOUNT, QUEBEC, CANADA.

RAILWAY-CAR TRUCK.

Specification of Letters Patent.

Patented Dec. 8, 1914.

Application led January 17, 1914. Serial No. 812,732.

T0 all whom it may concern:

Be it known that I, HENRY H. VAUGHAN, of the city of ivestmount, in the Province of Quebec, Dominion of Canada, a citizen of the United States of America, have invented certain new and useful Improvements in Railway-(far Trucks; and I do hereby declare that the following is a full, clear, and exact description thereof.

This invention has been designed for use more particularly in freight cars, although its essentials may be adapted for. use in the construction of other classes of cars.

Heretofore modern railway car trucks of the six wheel type have usually had a trucktrame, a spring plank, a bolster, equalizer bars, axle-boxes movable in guides in the truck frame and two sets of springs, one set of springs (usually of elliptical form) on the equalizer bars and supporting the truck flauwand the other set of springs resting on the s}' ringplank and carrying the bolster. ln these trucks as heretofore used the truck frame is interposed between the equalizer bar and bolster.

The object ot' the present invention is to prov ide a six-wheel Y'truck ot simpie construction and minimum weight and one comprising fewer disconnected parts than the sixuheel steel truck heretofore in use.

To this end the invention consists in providing a sixovheel steel truck comprising a rigid truck-frame member with a bolster forming an integral part thereof. a pair of compensating members each consisting of united parts; and spruigs interposed between the compensating members and trucktrame member. For full comprehension, however. of my invention reference must be had to the accompanying drawings toria ing a part ot' this specification. in which similar reference characters indicate the same parts. and wher-cio:

Figure l is a side ei ation partbY in vertical sectional view. el" or improved truck; Fig. is a plan view partiy in horizontal sectional view; and big. i iC as and elevation partly in vertical sectional view.

The compensating member et my improved truck comprises a pair ot end axle boxes Q ha\ing cast in one piece therewith or otherwise rigidly' united thereto a pair of compensating arms 3 pivoted by means of pins 4 to lugs 5 cast on opposite sides ot the middle axle box 6. Spring seats 76 are formed integrally with the arms 3 near the end axle boxes 2. The Wheels 7 are as usual mounted rigidly on the axles 8.

The truck frame comprises a bolster supported at its ends by auxiliary sills 12 from transoms 13 supported in turn by side-sill members 14, these truck-frame members being rigidly connected together. The ends and middle of the side-sill members are provided with downwardly extending lugs Q0 of angular cross-section adapted to straddle and closely and slidahly fit the sides of the compensating arms between the end spring seats and the axle boxes and clasp the contiguous portion of such spring Seats. These lugs effect a vertically sliding connection between the truck frame and axle boxes, and they are formed by castings riveted to the sills. The detail construction of these trucktrame, parts is as follows :Thc bolster consists of a pair of Lbeams relatively braced by spaced transverse I-heams located at opposite sides of the centers of the bolster and secured in place by angle-brackets 26; the ends of the I-beams l() being secured to the auxiliary side sills 12 by angle-brackets 2i". Top and bottom gusset plates 30 and 3l are riveted to the auxiliary side-sills and the I-bea1ns l0; and the usual center plate is secured on the top plate. Tpp and bottom gusset plates 40, 41 and 42 respectively of irregular form stiften the joint between the auxiliary sills and transoms and the transoins and main sills, the plates i1 and i2 being located on the underside ot the trame and so constructed as to provide necessary clearance for brake-hangers 6l). The stifi'ening ot this frame is further secured by the connection of the top and bottom bolster plates 30 and 31 to the auxiiiary side sills. The hangers consist of stirrups hung from pins 61 carried in the ends ot' brackets consisting of horizontal plates G3 riveted at one end to the underside of the transoms and supported at their other ends by diagonal plates 64 riveted thereto and to the web of the transoms. Brake levers indicated at 70 are fulcrumed in brackets 71, the rods being indicated at T2 and the brake beams at T3, the latter carrying usual brake-shoes 74. This construction provides a six-wheel steel truck comprisinga rigid truck frame member with a bolster forming an' integral part thereof the lugs Q0 forming a connection therebetween and the pair of compensating members constituted by the arms 3 and axleldd boxes 2 and 6, and suflieient cushioning effect between this truck-frame member and compensating members is secured by sets of coiled springs bearing between the spring seats TG and 77 respectively upon the top of the compensating members and the underside of the trame.

lVhat I claim is as follows 1. In a six wheel steel truck for railway cars a truck frame consisting of side sills having spring seats on the undersides of their end portions, transoms rigidly secured to the side sills at points inward of and adjacent to the spring seats. auxiliary side sills spaced from the main side sills and rigidly secured to the transoms, and a bolster rigidly secured at its ends to the auxiliary side sills.

2. In a siX wheel steel truck for railway cars a truck frame consisting of side sills having spring seats on the undersides of their end portions, transorns rigidly secured to the side sills at points inward of and adjacent to the spring seats; auxiliary side sills spaced from the main side sills and rigidly secured to the transoms; a bolster rigidly secured at its ends to the auxiliary side sills; top gusset plates extending over and rigidly secured to the abutting and abutted portions of the side sills, transoins and auxiliary side sills, and bottom gusset plates secured to the underside of the trame in substantial juxtaposition with the top gusset plates and constructed to provide clearances.

3. In a six wheel steel truck for railway cars a truck frame consisting of sideA sills having spring seats on the undersides of their end portions, transoms rigidly mired to the side sills at points inward olt and adjacent to theI spring seats; auxiliaryr .side sills spaced from the main side sills and rigii ly secured to the transoins: a bolshr rigidly secured at its ends to the auxiliary side sills; the said bolster consisting of spaced I- beams and top and bottom guserf tles eX- tending completely over and rigidly seto the I-beams and the portions of the auxiliary side sills abutted thereby. top gusset plates exrnding over. and. rigidly secured to sills spaced from the main side sills and rigidly secured to the taiisoms; a bolster rigidly secured at its e'hls to the auxiliary side sills, die said bolster consisting of beams and top and bottom gusset plates eX- 55 tending compictely over and secured having spring seats on the infiel-sides cf their end portions, transoms rigidly secured to the side sills at points inward of and afijaeent to the spring seats; auxiliary side 4. In a six wheel steel truck for :"iilvi.' cars a truck frame consisting ot side sill" cured to the Lbeanis and the the auxiliary side sills abutted thereby. the abutting and alliitliil portion of side sills, transoms and auxiliary 'l i and bottoni gusset plates secured io ne derside olthe frame in substantial juxtaposition with the top gusset plaies and structcd to provide clearances. iff' In :i six vvliccl steel truck for vaiirvay cars comprising in combination a rigid truck frame member with a bolster ioinnng an integral part thcreo.c and having springY seats at the underside oi its cxtreme corner .3 portions. a pair ol conigli-peiling inenibiww. each consisting ot a middle and two end axle-boxes and arnn rigidlv winnected to the end axle-boxes and pivotally connected t0 the middle :ixleboxes srch arms having sprine seats in vertical alinement with the spring seats upon the truck 'aine. springs interposed between the spring and the truck frame having down '..lv yExtending' lugs vertically slidably engaging the sai arms.

In testimony whereof I have signed "gv name to this specification in the pr nu? o" two witnesses.

HENRY H. VAUGHN.

Witnesses:

E. R. PIT'rs, WILLIAM J. C. IIEWETSON. 

